[flang-commits] [flang] [flang] AliasAnalysis: distinguish addr of arg vs. addr in arg (PR #87723)

[Renaud Kauffmann via flang-commits]

================
@@ -399,19 +404,30 @@ AliasAnalysis::Source AliasAnalysis::getSource(mlir::Value v) {
   if (!defOp && type == SourceKind::Unknown)
     // Check if the memory source is coming through a dummy argument.
     if (isDummyArgument(v)) {
-      type = SourceKind::Argument;
       ty = v.getType();
       if (fir::valueHasFirAttribute(v, fir::getTargetAttrName()))
         attributes.set(Attribute::Target);
-
       if (Source::isPointerReference(ty))
         attributes.set(Attribute::Pointer);
+      if (followBoxAddr && fir::isa_ref_type(ty))
----------------
Renaud-K wrote:

This is the reason why alias-analysis-host-assoc.fir is failing. 
This is the only place where we check for `SourceKind::Argument `


```
  if (src1->kind == SourceKind::Argument &&
      src2->kind == SourceKind::HostAssoc) {
   ...
    src2->attributes.set(Attribute::Target);
  }
```

https://github.com/llvm/llvm-project/pull/87723